Oral supplements typically increase levels within one to two weeks, with normalisation taking three to six months depending on deficiency severity
These projections assume consistent daily dosing at 300-500 mcg subcutaneous, caloric deficit of 300-500 calories per day, and regular physical activity
Most protocols recommend splitting the difference at 28 days maximum
Founder of Optimal Health Medical and physician specializing in holistic, integrative, medical weight loss, peptide, and recovery-focused care.
A nuance worth stating plainly: the strict "oral = gut only, injection = everything else" dichotomy is a simplification
It has been reported in a number of studies that specific ABR genes are present in the gut microbiota of many individuals from different countries 15,16